RESUMO

The antimicrobial sensibility of Escherichia coli strains isolated from the uterine content of bitches was evaluated. Fifteen E. coli strains were tested in relation to their susceptibility to different antimicrobials. The results demonstrated 100 percent of resistance to all tested drugs, being a quite conflicting finding compared to other works, which observed variable resistance of those bacteria to different antimicrobials but not the same multi-resistance pattern. The detection of those multi-resistance strains configures a problem, with important implications on the antimicrobial therapy. Therefore, additional investigations for a best characterization and extension of this problem are needed.(AU)

Assuntos

RESUMO

The antimicrobial sensibility of Escherichia coli strains isolated from the uterine content of bitches was evaluated. Fifteen E. coli strains were tested in relation to their susceptibility to different antimicrobials. The results demonstrated 100 percent of resistance to all tested drugs, being a quite conflicting finding compared to other works, which observed variable resistance of those bacteria to different antimicrobials but not the same multi-resistance pattern. The detection of those multi-resistance strains configures a problem, with important implications on the antimicrobial therapy. Therefore, additional investigations for a best characterization and extension of this problem are needed.

Assuntos

RESUMO

The aim of the study was to evaluate analgesia and cardiorespiratory alterations produced by morphine or fentanil epidural during atlanto-axial biopsy, besides the postoperative analgesic quality promoted by those drugs. In a blind study, 16 mixed healthy dogs were used. After preanesthetic medication with 0,1mg/kg of acepromazine IV, they received 0,1mg/kg of morphine (GM) or 4µg/kg of fentanil (GF) epidural with lidocaine, resulting in 0,25ml/kg final volume. Anesthesia was obtained with 4mg/kg of propofol following halothane. HR, SAP, MAP, DAP, f, SpO2 and TºC were measured. Halothane vaporization was adapted according to MAP, maintaining it between 70 and 90mmHg.  Postoperative evaluations were done at 3, 4, 6, 8, 12 and 24 hours post-epidural. There was reduction of halothane vaporization in both groups. SAP and MAP decreased considerably 20 min post-epidural in both groups. Apnea was observed in five animals of GF and two animals of GM, which were maintained under artificial ventilation. The groups did not differ themselves on postoperative evaluation. However, two animals of GF needed supplementary analgesia, suggesting inferiority as postoperative analgesic. It was concluded that two opioids reduced halothane demand significantly, evidencing trans-operative analgesic effect. However, fentanil promoted marked breathing depression in that perio

O estudo objetivou avaliar a analgesia e alterações cardiopulmonares produzidas pela morfina ou fentanil administrados por via epidural durante biópsia atlanto-axial, além da qualidade analgésica pós-operatória promovida por esses fármacos. Em estudo cego, foram avaliados 16 cães os quais, após medicação pré-anestésica com 0,1mg/kg de acepromazina IV, receberam 0,1mg/kg de morfina (GM) ou 4µg/kg de fentanil (GF) por via epidural, associados à lidocaína, resultando em um volume final de 0,25ml/kg. Prosseguiu-se a anestesia com 4mg/kg de propofol, mantendo-se com halotano. Foram avaliados FC, PAS, PAM, PAD, f, SpO2 e TºC. A vaporização de halotano foi adequada de acordo com a PAM, mantendo-a entre 70 e 90mmHg. A avaliação pós-operatória ocorreu às 3, 4, 6, 8, 12 e 24 horas pós epidural. Houve redução da vaporização em ambos os grupos. A PAS e a PAM diminuíram consideravelmente aos 20 min pós epidural nos dois grupos. Cinco animais do GF e dois animais do GM apresentaram apnéia, sendo mantidos sob ventilaçã